Pain Post Abdominal Laparoscopy Prevention With Arcoxia

To test the analgesic efficacy of etoricoxib used before a surgical procedure compared to the already known effect when administered after such a procedure. Patient will be receiving either etoricoxib or the respective placebo one hour before surgery, then two hours after those receiving the active will receive placebo and those that received placebo will be given etoricoxib. Pain score measurements will be performed sequentially. Rescue medication will be available all the time.